m4/pdns_check_libcrypto_eddsa.m4

   1 AC_DEFUN([PDNS_CHECK_LIBCRYPTO_EDDSA], [
   2   AC_REQUIRE([PDNS_CHECK_LIBCRYPTO])
   3
   4   # Set the environment correctly for a possibly non-default OpenSSL path that was found by/supplied to PDNS_CHECK_LIBCRYPTO
   5   save_CPPFLAGS="$CPPFLAGS"
   6   save_LDFLAGS="$LDFLAGS"
   7   save_LIBS="$LIBS"
   8
   9   CPPFLAGS="$LIBCRYPTO_INCLUDES $CPPFLAGS"
  10   LDFLAGS="$LIBCRYPTO_LDFLAGS $LDFLAGS"
  11   LIBS="$LIBCRYPTO_LIBS $LIBS"
  12
  13   libcrypto_ed25519=no
  14   libcrypto_ed448=no
  15   AC_CHECK_DECLS([NID_ED25519], [
  16     libcrypto_ed25519=yes
  17     AC_DEFINE([HAVE_LIBCRYPTO_ED25519], [1], [define to 1 if OpenSSL ed25519 support is available.])
  18   ], [ : ],
  19   [AC_INCLUDES_DEFAULT
  20   #include <$ssldir/include/openssl/evp.h>])
  21   AC_CHECK_DECLS([NID_ED448], [
  22     libcrypto_ed448=yes
  23     AC_DEFINE([HAVE_LIBCRYPTO_ED448], [1], [define to 1 if OpenSSL ed448 support is available.])
  24   ], [ : ],
  25   [AC_INCLUDES_DEFAULT
  26   #include <$ssldir/include/openssl/evp.h>])
  27
  28   AS_IF([test "$libcrypto_ed25519" = "yes" -o "$libcrypto_ed448" = "yes"], [
  29     AC_DEFINE([HAVE_LIBCRYPTO_EDDSA], [1], [define to 1 if OpenSSL EDDSA support is available.])
  30   ], [ : ])
  31
  32   # Restore variables
  33   CPPFLAGS="$save_CPPFLAGS"
  34   LDFLAGS="$save_LDFLAGS"
  35   LIBS="$save_LIBS"
  36 ])